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Contour Lines Added To Google Maps
posted by lxnyce
on Thursday April 03, @08:42AM
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from the another-cool-release dept.
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from the another-cool-release dept.
The Digital Earth Blog informs us that Google has just added contour lines to their maps. From their summary : "Late last year, Google introduced terrain maps, which were 3D-looking maps of the earth — kind of a cross between flat maps and satellite imagery.
Today they’ve added contour lines to many of the maps around the world, helping to show the elevation changes in even greater detail. Their explanation is:"
Head on over there for more information and of course to the google site to see the contours.
Head on over there for more information and of course to the google site to see the contours.
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Technology: Google Maps Adds Terrain 10 comments
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Google Lat Lon Blog announces the addition of terrain to their free Google Maps site. In addition to adding the Terrain button, they've removed the Hybrid button. They explain,
"You may notice in this screenshot that the handy "Hybrid" button, which shows satellite images overlaid with labels and roads, seems to have gone missing. Don't worry -- this view can now be accessed by clicking the "Satellite" button and checking the "Show labels" check box that will appear under the "Satellite" button."
"You may notice in this screenshot that the handy "Hybrid" button, which shows satellite images overlaid with labels and roads, seems to have gone missing. Don't worry -- this view can now be accessed by clicking the "Satellite" button and checking the "Show labels" check box that will appear under the "Satellite" button."
Contour Lines Added To Google Maps
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The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
Dynamic contours based on height variation
(Score:3, Insightful)( http://www.njstateatlas.com/ )
In areas of gradual change, the 100' contours don't do much for you. Gently sloping areas now appear to have a new road or trail added to the map, as the contours and smaller roads are similar in weight and color. They should provide contours at smaller intervals (ie 50', 10', 5') for areas of little variation. Contours barely show up in Florida; instead you get this stepped pattern due to an unsmoothed DEM.
What's their source? Are they using NED [usgs.gov], or are they pulling from some other source? Have they incorporated first returns from CLICK [usgs.gov] into their elevation datasets for Maps - Terrain and Google Earth?
I hate that Google is entirely lacking when it comes to metadata.
I see what you mean
(Score:3, Informative)( http://www.vizure.com/ )
At first glance, it seems like a useful feature, but the reality is that the folks who would care about contours, are probably going to want something a little better and know what resolution terrain the contours are based on.
EiS examination
(Score:2)( http://alexandreleroux.blogspot.com/ | Last Journal: Friday March 17, @05:07PM )